Charge transfer device having a bent charge transfer channel

US4403237A · kind A · utility

Assignee

• Matsushita Electronics Corporation · JP

Inventors

• Yoshio Ohkubo
• Tadashi Aoki · Yokohama, JP
• Hiroshi Ohishi · Tokyo, JP

Key dates

• Filing date: Sep 23, 1981
• Grant date: Sep 6, 1983
• Expiry date: Sep 23, 2001

Classification

• Technology area (CPC H): Electricity
• CPC primary: H10D62/335

Abstract

In a charge transfer device wherein the charge transfer channel is bent through a predetermined angle of, for instance, 45.degree., 90.degree. or 180.degree., a unit of each bend includes at least two juxtaposed gate electrodes each of which has a portion bent by an angle equal to said predetermined angle relative to the axis of the preceding channel in such a way that the gate electrodes in the bend may be substantially equal in area to those in the straight charge transfer line sections and the channel length in the bend may be substantially equal to that in the straight charge transfer line section, whereby the decrease in transfer efficiency and S/N ratio due to the differences in gate area and channel length may be eliminated.